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Q 16

Expert-verified

Found in: Page 385

Book edition OER 2018

Author(s) Barbara Illowsky, Susan Dean

Pages 902 pages

ISBN 9781938168208

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Short Answer

Suppose X ~ N(8, 1). What value of x has a z-score of –2.25?

The value of $x$ is $5.75$

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1 Given Information

Given that, $z = - 2.25$ . And,

$X ~ N (8, 1)$ Where,

$μ = 8$

$σ = 1$

We have to find the value of $x$

Step 2 Explanation

The value of $z$ -score can be calculated as below:

$z = \frac{x - μ}{σ}$

Put the provided values in the above expression. Then,

$- 2.25 = \frac{x - 8}{1}$

$x - 8 = - 2.25 \times 1$

$x = - 2.25 + 8$

$x = 5.75$

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Suppose X ~ N(8, 1). What value of x has a z-score of –2.25?

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Introductory Statistics

Answers without the blur.

Short Answer

Suppose X ~ N(8, 1). What value of x has a z-score of –2.25?

Step by Step Solution

Step 1 Given Information

Step 2 Explanation

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